This is the Fuzz Face, the legendary fuzz distortion pedal. With this PCB you can build the original or many other variants using either PNP or NPN transistors. You can use a trimmer to easily adjust the bias point and behavior of the circuit.

This board will definitely save your time and help you to build your DIY guitar pedal in the 1590B enclosure. Led, jacks and footswitch are mounted on the PCB, being only necessary to wire the battery and the effect PCB. The PCB also includes power supply filtering and reverse polarity protection.